Safety base



FIG. 1 is a left elevational view of the safety base showing our new design;

FIG. 2 is a top plan view of the safety base;

FIG. 3 is a rear elevational view of the safety base;

FIG. 4 is a front elevational view of the safety base; and,

FIG. 5 is a bottom plan view of the safety base. 

The ornamental design for a safety base, as shown and described. 